Revolving holder for maps



(No Model.) 2 Sheets--Sheet '1; A. B. FRETZ. REVOLVING HOLDER FOR MAPS, 8m.

Patented May 15,1894.

Jill/ml?! (Nb Model.) 2 Sheets-Sheet 2. A. B. FRETZ. REVOLVING HOLDER FOR MAPS, &c.

No. 519,763. Patented May 15, 1894.

UNITED STATES PATENT OFFICE.

ALVA B. FRETZ, OF CALDWELL, NEW JERSEY.

REVOLVING HOLDER FOR MAPS,

SPECIFICATION forming part of Letters Patent No. 519,763, dated May 15, 1894.

Application filed April 23,1891. Serial No. 390,211. [No model.) i

To all whom it may concern.-

Be it known that I, ALVA B. FRETZ, a citizen of the United States, residing at Caldwell, in the county of Essex and State of New Jersey, have invented certain new and useful Improvements in Revolving Holders for Maps,

850.; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being i had to the accompanying drawings, and to letters of reference marked thereon, which form a part of this specification.

The object of this invention is to provide a ready and convenient apparatus for displaying, either in a school-room or elsewhere,maps, charts, &c., and to protect them from being soiled by dust or from being handled when not being displayed. A further object is to enable merchants and manufacturers to display and protect curtains, wall-paper and other articles in like manner.

Theinvention consists in the improved map or curtain-holder and in the arrangement and combination of the several parts thereof, as herein set forth and finally pointed out in the claims.

Referring to the accompanying drawings, in which similar letters of reference indicate corresponding parts in each of the several views where they occur, Figure 1, represents a front elevation of an apparatus embodying my improvements and Fig. 2 an end elevation of the same. Fig. 3, represents a vertical transverse section taken through line or, of Fig. 1 and showing certain of the working parts of the apparatus inelevat-ion. Figs. 4., 5 and 6, are detail views, of certain of the working parts, a further description of which will follow hereinafter.

In said drawings, A, indicates a closet-like receptacle in which certain of the working parts are located and adjusted.

B, indicates a combined door and rest, serving the purpose of an inclined support for the maps, &c., when unrolled for display or instruction and also of a door by means of which the receptacle may be closed when said maps, &c., are rolled up and not in use. Said door is arranged to move or slide vertically at the top, and at the bottom to move outwardly when the door is being opened or lowered and inwardly when being raised or closed. To this end said door is provided at the top with an outwardly projecting dowel or pin a, at each side, which enters and works in a groove 2), formed at each side of the receptacle, and at the bottom withasuitable spring-actuated latch or bolt 0, which fastens the door when it is closed, as will be understood upon reference to Figs. 1, 2 and 3. The door is guided to and held atthe desired inclination by means of a brace d, pivotally connected at one end to said door, at e, and at the other end to the wood-work of the receptacle, as at f, as indicated in said Fig. 3.

Inside of the casing or receptacle are mounted, in suitable bearings or boxes, g, two rotatable rolls, h, one near the top and the other near the bottom of said receptacle, having shoulders or guides 2'; upon these rolls are adjusted two endless belts or bands, 7', one at each end, as indicated in Figs. 3 and 4, or, if preferred, one broad .belt or band extending from end to end of said rolls may be substituted therefor and subserve the same purpose, as will be understood. Upon said belt or belts are removably mounted, atintervals,

as many maps, 70, or other articles as the belts will contain or as many as may be desired, said maps being attached to ordinary curtain rolls Z, preferably those known as the Hartshorn rollers the fixtures or brackets m, therefor being fastened to suitable slats n, say one and a half inches wide, or wide and thick enough to receive and support said brackets and the curtains, 850., therein. Said slats are secured to the belts in such manner as that they can be easily and quickly removed therefrom when desired and others substituted in their places, as they are designed and intended to be interchangeable, whereby a map or other article may, at any time, be removed and another and different map or other artiole be adjusted in its place, as will be under stood. To this end the slats are provided with a suitable hook, 0, at each end, which hooks engage with staples or eyes, 10, secured to the belts and projecting through slots or mortises, q, in the ends of said slats, as indicated in Figs. 4 and 5.

The curtains or maps are prevented from dropping out of the brackets by means of pins, r, inserted in said brackets, over the journals of the curtain rollers, as indicated in Fig. 3. The slats are provided with suitable hooks or rings 5, by means of which they One set of the hearings or boxes in which the rolls h rotate, in the present instance the one at the top, is movable vertically, in a tongue and groove joint, and is operated by means of thumb-screws t, and screw-rod t, as indicated in Fig. 6, whereby the belts may be tightened. or loosened to regulate the tension thereof, as will be understood. The said boxes or bearings are seated in standards M, which are removably secured to the sides or ends of the case or receptacle by means of screws 0, so that by backing out said screws, the standards, together with the belts, &'c., may be removed intact, at any time if desired for purposes of repair; and for the same reason the back of the receptacle may be provided with a door whereby entrance may be had thereat to the working parts, as will be understood.

The device is operated by means of a crank:

a belt on the rollers, aseries of rollers on said belt, adapted to receive maps, curtains or the like, a slotted guide in said casing,a door having a dowel or pin fitting and adapted to move in said guide, and a brace hinged or pivoted respectively to the door and casing for the purpose described.

3. In a map or curtain holder the 'combination of a casing, adjustable hearings or boxes in said casing, removable standards carrying said boxes, rolls mounted in the boxes, a belt or belts mounted on the rolls and carryinga series of maps, curtains or the like, a support or rest for displaying said maps or curtains, hinged at its upper end to the casing, a brace hinged to the casing for supporting the rest at an incline, and a latch for securing the rest when not inuse, for the purpose described.

In testimony that I claim the foregoing I have hereunto set my hand this 11th day of April, 1891.

ALVA B. FRETZ.

Witnesses:

- OLIVER DRAKE,

OSCAR A. MICHEL. 

